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by ppnutt
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171
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25,131

### all event is 9c3 and all men in group is 4c3 then...

all event is 9c3 and all men in group is 4c3 then at least woman in it is 9c3-4c3=84-4=80
2. ## Thread: Some questions from master cbt.

by ppnutt
Replies
1
Views
1,077

### Some questions from master cbt.

if 72.42=k(24+n/100),where k and n are positive integers and n<100, then k+n=
a.17 b.16 c.15 d.14 e.13

by ppnutt
Replies
171
Views
25,131

### "A 3-member rowing team is to be selected from 4...

"A 3-member rowing team is to be selected from 4 men and 5 women. How many different 3-member teams be formed subject to the requirement that each team have at least 1 woman in it?"

by ppnutt
Replies
9
Views
3,036

### another one question

A rectangular horse corral with an area of 10,000 square feet is to constructed. The corral must have a perimeter fence along which no two adjacent fence posts are more than 10 feet apart.Column A 44...

by ppnutt
Replies
9
Views
3,036

### Algebra question

An empty swimming pool can be filled to capacity through an
inlet pipe in 3 hours, and it can be completely drained by a
drainpipe in 6 hours. If both pipes are fully open at the same
time, in how...

by ppnutt
Replies
171
Views
25,131

### Grace has 16 jellybeans in her pocket. She has 8...

Grace has 16 jellybeans in her pocket. She has 8 red ones, 4 green ones, and 4 blue ones. What is the minimum number of jellybeans she must take out of her pocket to ensure that she has one of each...

by ppnutt
Replies
2
Views
880

Explain plz!

by ppnutt
Replies
5
Views
2,276

Thank you..

by ppnutt
Replies
5
Views
2,276

### PPgre

1. If two trains are 120 miles apart and are traveling toward each other at a constant rate of 30 mph and 40 mph, respectively, how far apart will they be exactly 1 hour before they meet?